Angle valve and steel cylinder

Abstract

The invention discloses an angle valve and a steel cylinder. The angle valve comprises an angle valve body, an angle valve core, a filling prevention valve core, a magnet A and a magnet B; the angle valve body comprises an air inlet and an air outlet; the filling prevention valve core comprises a sealing plate and a sealing plane matched with a sealing surface of the sealing plate; an included angle between the vertical line of the sealing plane and an angle valve center plane determined by the axis of the air outlet of the angle valve body and the axis of the air inlet of the angle valve body is between plus 20 degrees and minus 20 degrees; the magnet A is attached to the upper end of the back side of the sealing surface of the sealing plate; the magnet B is attached to the angle valve body or the filling prevention valve core; adjacent magnetic poles of the magnet B and the magnet A are located in two 120-degree fan sections formed by rotating the angle valve center plane along the axis of the air inlet of the angle valve by plus 60 degrees and minus 60 degrees, and are located in an angle valve body area within 20mm above and below the uppermost end of external threads of the air inlet of the angle valve body, or in a valve core structure opposite to the sealing plane; and the adjacent magnetic poles of the two magnets have the same polarity. The steel cylinder comprises a cylinder body and the angle valve which are mutually connected. The angle valve and the steel cylinder are high in cracking prevention ability, simple in structure and low in cost.

Description

technical field [0001] The invention relates to an angle valve capable of preventing others from filling gas, and also relates to a steel cylinder using the angle valve. Background technique [0002] Angle valves are valve components used in liquefied gas cylinders and other pressure vessel cylinders, and are crucial to ensuring the safety of pressure vessels. [0003] In order to realize the effective management of liquefied gas cylinders, prevent the abuse of liquefied gas cylinders, and improve the safety of use, angle valves have appeared. Such as figure 1 As shown, the angle valve includes an angle valve body 10, an angle valve spool 30 installed in the angle valve body 10, an anti-filling spool 20 installed in the cavity of the air inlet 12 of the angle valve body 10, the The anti-fill valve core 20 includes a sealing plate 21 that closes the port of its venting path, so as to prevent abuse of the liquefied gas cylinder. [0004] The anti-fill spool of the angle val...

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is to provide an angle valve that overcomes the defect that existing angle valves are easily cracked

[0007] The second technical problem to be solved by the present invention is to provide a steel cylinder that uses the above-mentioned angle valve to overcome the defect that the angle valve is easily cracked in the use of existing steel cylinders

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